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The Earth

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I could not sleep for thinking of the sky,
The unending sky, with all its million suns
Which turn their planets everlastingly
In nothing, where the fire-haired comet runs.
If I could sail that nothing, I should cross
Silence and emptiness with dark stars passing,
Then, in the darkness, see a point of gloss
Burn to a glow, and glare, and keep amassing,
And rage into a sun with wandering planets
And drop behind, and then, as I proceed,
See his last light upon his last moon's granites
Die to dark that would be night indeed.
Night where my soul might sail a million years
In nothing, not even
Death, not even tears.

John Masefield
I Could Not Sleep for Thinking of the Sky

Questions to Explore:
  • How do we know that the planet Earth really revolves and rotates?
  • What is the structure of the interior of the Earth?
  • What causes mountain ranges, volcanos, and earthquakes?
  • Where did the Earth’s oceans and atmosphere come from and how have they changed with time?
  • Why does air temperature vary with altitude?
  • What is the greenhouse effect and how does it influence the temperature of the Earth?

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